Hot-water heating system.



No. 694,206. v Patente'd-Feh.'25, |902.

I. D.` SMEAD.

IIOT WATER HEATING SYSTEIL (Application led Oct. 12, 1901.) (No Model.)v Z-ShBeIs-Sheet I.

No. 694,206. Patented Feb. 25, |902.

l. n. sMEAn.

HOT WATER HEATING SYSTEM.

Application md ocr. 12, 1901.) (No Mode-I.) 2 Sheets-Sheet 2.

UNITED STATES y"AT'ENT muon.

ISAAC D. SIWIEAD, OF CINCINNATI, OHIO.

HOT-WATER HEATING SYSTEM.

SPECIFICATION forming part of Letters Patent No. 694,206, dated February25, 1902.

`Application led October 12, 1901. Serial No. 78,495. (No model.)

To all whom t may concern.:

Beit known that I, ISAAC D. SMEAD, a cilizen of the United States,residing at Cincinnati, in the county of Hamilton and State of Ohio,have invented certain new and use ful Improvementsin Hot-Water HeatingSystems, of which the following is a specification.

My present invention pertains to hot-water heating systems, theconstruction and advantages of which will be hereinafter pointed out,reference being had to the annexed drawings, wherein- Figure 1 is avertical sectional view of a plant constructed in accordance with myinvention, and Fig. 2 an enlarged detail View of the upper portion ofthe reservoir or boiler.

It has heretofore been proposed to utilize exhaust-steam from variousforms of power plants in the heating of a body of water and to employthe water'so heated in the warming or heating of buildings and for othercommercial purposes. The present invention relates to plants of thistype, and has for its object the production of a heaterl wherein thesteam, exhaust or live, may be utilized to the best advantage andwithout creating any back pressure in the steam-supply pipe, but rather,

if at all, tending to draw the steam from the supply-pipe. Y

Referring more particularly to Fig. l, A indicates the water reservoiror boiler, provided with adiaphragm B, near its upper end, forming achamber C between it and the upper end of the boiler, which will behereinafter referred to as the expansion-chamber. A hopper orfunnel-shaped memberD, secured to the diaphragm, affords communicationbe.

tween the reservoir or boiler proper and the expansion-chamber.

E indicates the return-line of the heatingsystem and, as will be seen,it enters the reservoir near the bottom thereof, extendsl upwardlytherein, and discharges into the eX- pansion-chamber above thediaphragm. The How-line or outgoing pipe F is connected to the lower endof the reservoir, a pump Gr being employed to insure proper circulationof l the water through the heating system.

H denotes the pipe leading from the source of exhaust-steam. As will beseen, the pipe extends n p to a point above the boiler through casing I,surrounding the upper end thereof, to the atmosphere. A yvalve J isinterposed in the pipe to cause the steam when so desired to passthrough a lateral or branch pipe K, the pipe entering the upper end ofthe boiler and passing down through the funnel or hopper D to a pointslightly below the lower end thereof. The lower end of said pipe K ispreferably perforated, as shown, and eX- tends downwardly below thepoint of normal water-level of the boiler.

A live-steam pipe L may be connected to the exhaust-steam pipe II, thelive steam being employed as an auxiliary to the exhauststeam in severeweather' or being used above when the power plant is not operating, eX-haust-steam being not available at such times.

An overflow-pipe (designated by M) is employed, onemember N thereofterminating at a point below the diaphragm and the other, O, extendingup through the diaphragm into the upper part of the expansion-chamber.This overflow-pipe permits the oil introduced by the steam to pass outof bothv tanks. It also prevents any pressure caused by overheating ofthe water and likewise permits an overflow if the system gets full.

It will be understood that the reservoir or boiler is of such height oris so elevated that water will be supplied therefrom to the highestradiator included in the system.

The operation of the apparatus is apparent. Water to a sufficient amounthaving been admitted to the system, the pump is started, forcing thewater through the system and up through the return-pipe E intothe'expansion-chamber. It then iiows down through the funnel and aroundthe pipe K, coming into intimate contactwith the steam passing from thepipe. The stream of water passing by the openings and the end of thepipe tends to create a suction in the pipe, and thus` counteract anyback pressure which mayexist in the exhaust-steam pipe.v The water inthe reservoir is constantly agitated by the stream passing from thefunnel, and the steam is thoroughly commingled therewith, the heat ofthe steam being thus thoroughly utilized.

As will be seen upon reference to Fig. l, a fire-chamber is placed belowthe boiler or reservoir, tubes or iues P passing up there from into theboiler and connecting with a smoke-drum Q. A iiue or stack R extendsfrom the drum out through the boiler to a point above the same. Underordinary conditions this portion of the apparatus will not be employed,but is provided in order to present an additional factor of safety andemployed when for any reason the steam-supply fails. It may be entirelyomitted, if so desired.

I-Iaving thus described my invention, what I claim is- 1. In combinationwith a water-reservoir; a diaphragm mounted in the upper end thereof afunnel extending down from said diaphragm; a steam-supply pipe passingdown through the funnel and terminating at a. point slightly below thesame; and means for supplying water to the reservoir at a point abovethe diaphragm.

2'. In combination with a water-reservoir; a diaphragm mounted in theupper end thereof and provided with an opening; means for withdrawingwater from said reservoir and returning the same thereto at a pointabove the diaphragm; and means for introducing steam into the water asil; flows downwardly through the opening in the diaphragm.

3. In combination with a water-reservoir; a diaphragm secured in theupper portion thereof; a funnel extending downwardly from saiddiaphragm; means for withdrawing water from the reservoir and returningthe same thereto at a point above the diaphragm; and a steam-supply pipeextending down through the funnel.

4. In combination with a water-reservoir; a diaphragm secured in theupper end thereof; a funnel extending downwardly from said diaphragm; asteam-supply pipe extending through the funnel and havinga perforatedend, and means for withdrawing water from the reservoir and returningthe samethereto at a point above the diaphragm.

5. In combination with a water-reservoir; a diaphragm secured in theupper end thereof a funnel extending downwardly from said diaphragm; asteam-supply pipe extending into said funnel; an overflow-pipe havingopenings above and below the diaphragm; and means for withdrawing waterfrom the reservoir and returning the same thereto at a point above thediaphragm..

6. In combination with a water-reservoir; a circulating system incommunication therewith; means for withdrawing the water from the lowerportion of said reservoir and returning it to the upper end thereof;means for admitting steam to the upper portion of the reservoir andbringing it in intimate contact with the'water as it is returned to theupper end of the reservoir; and a furnace 1ocated below the reservoir.

7. In combination with a water-reservoir; a circulating system incommunication therewith; means for withdrawing the water from the lowerportion of said reservoir and returning it to the upper end thereof;means for admitting steam to the upper portion of the reservoir andbringing it in intimate contact with the water as it is returned to theupper end of the reservoir; a fire-drum 1ocated within the reservoir; aiiue connected to said drum and extending outwardly through thereservoir above the drum; a fire-chamber located beneath the reservoir;and tubes extending from the fire-chamber to the drum.

In testimony whereof I have signed my name to thisv specication in thepresence of two subscribing witnesses.

ISAAC D. SMEAD. AWitnesses:

A. M. AINSLIE, BURTON A. SMEAD.

